Located less than ½ kilometer East of Purushottamar Divya Desam is Sempon Sei Arangar Divya Desam in Thirunangur. Sempon Arangar is said to have come from Uraiyur. Hence the Lord here has 2 Goddesses Boo devi and Sreedevi similar to Azhagiya Manavaalan of Uraiyur.
After killing Ravana, Lord Rama is said to have stayed here for a few days. While here, he is said to have a made a golden cow and had given it to a Brahmin, who is said to have built this temple.
Once a poor person worshipped Lord here by reciting the Thiru manthiram and Lord answered his prayers by blessing him with wealth. The belief here is that one would recover his lost wealth, if one offers sincere prayers to Sempon Arangan.